The power headrest on my passenger seat in my 1993 300E 2.8 refuses to go down. It went up just fine, but going back down again is the problem.

Which is the most likely point of failure, the switch in the door or the motor in the seat back, or is there somewhere else I should be looking at?

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Steven Harrison

1993 300E2.8 - 196K
2001 E320 4MATIC - 86K